Security update for unbound

Announcement ID:	SUSE-SU-2024:1923-1
Rating:	important
References:	bsc#1202031 bsc#1202033 bsc#1203643 bsc#1219823 bsc#1219826 jsc#PED-8333
Cross-References:	CVE-2022-30698 CVE-2022-30699 CVE-2022-3204 CVE-2023-50387 CVE-2023-50868
CVSS scores:	CVE-2022-30698 ( SUSE ): 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2022-30698 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-30699 ( SUSE ): 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2022-30699 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-3204 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2022-3204 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2023-50387 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2023-50387 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2023-50868 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	Basesystem Module 15-SP6 openSUSE Leap 15.6 SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise Real Time 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 SUSE Package Hub 15 15-SP6

An update that solves five vulnerabilities and contains one feature can now be installed.

Description:

This update for unbound fixes the following issues:

unbound was updated to 1.20.0:

• A lot of bugfixes and added features. For a complete list take a look at the changelog located at: /usr/share/doc/packages/unbound/Changelog or https://www.nlnetlabs.nl/projects/unbound/download/

Some Noteworthy Changes:

• Removed DLV. The DLV has been decommisioned since unbound 1.5.4 and has been advised to stop using it since. The use of dlv options displays a warning.
• Remove EDNS lame procedure, do not re-query without EDNS after timeout.
• Add DNS over HTTPS
• libunbound has been upgraded to major version 8

Security Fixes: * CVE-2023-50387: DNSSEC verification complexity can be exploited to exhaust CPU resources and stall DNS resolvers. [bsc#1219823] * CVE-2023-50868: NSEC3 closest encloser proof can exhaust CPU. [bsc#1219826] * CVE-2022-30698: Novel "ghost domain names" attack by introducing subdomain delegations. [bsc#1202033] * CVE-2022-30699: Novel "ghost domain names" attack by updating almost expired delegation information. [bsc#1202031] * CVE-2022-3204: NRDelegation attack leads to uncontrolled resource consumption (Non-Responsive Delegation Attack). [bsc#1203643]

Packaging Changes:

• Use prefixes instead of sudo in unbound.service
• Remove no longer necessary BuildRequires: libfstrm-devel and libprotobuf-c-devel

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.6
  zypper in -t patch SUSE-2024-1923=1 openSUSE-SLE-15.6-2024-1923=1
• Basesystem Module 15-SP6
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2024-1923=1
• SUSE Package Hub 15 15-SP6
  zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP6-2024-1923=1

Package List:

• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
  • libunbound-devel-mini-debugsource-1.20.0-150600.23.3.1
  • unbound-1.20.0-150600.23.3.1
  • libunbound8-1.20.0-150600.23.3.1
  • libunbound-devel-mini-debuginfo-1.20.0-150600.23.3.1
  • libunbound8-debuginfo-1.20.0-150600.23.3.1
  • unbound-anchor-debuginfo-1.20.0-150600.23.3.1
  • unbound-debugsource-1.20.0-150600.23.3.1
  • unbound-debuginfo-1.20.0-150600.23.3.1
  • unbound-devel-1.20.0-150600.23.3.1
  • unbound-python-1.20.0-150600.23.3.1
  • unbound-anchor-1.20.0-150600.23.3.1
  • unbound-python-debuginfo-1.20.0-150600.23.3.1
  • libunbound-devel-mini-1.20.0-150600.23.3.1
• openSUSE Leap 15.6 (noarch)
  • unbound-munin-1.20.0-150600.23.3.1
• Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
  • unbound-debugsource-1.20.0-150600.23.3.1
  • libunbound8-1.20.0-150600.23.3.1
  • unbound-anchor-debuginfo-1.20.0-150600.23.3.1
  • libunbound8-debuginfo-1.20.0-150600.23.3.1
  • unbound-devel-1.20.0-150600.23.3.1
  • unbound-debuginfo-1.20.0-150600.23.3.1
  • unbound-anchor-1.20.0-150600.23.3.1
• SUSE Package Hub 15 15-SP6 (aarch64 ppc64le s390x x86_64)
  • unbound-1.20.0-150600.23.3.1
  • unbound-debugsource-1.20.0-150600.23.3.1
  • unbound-python-1.20.0-150600.23.3.1
  • unbound-debuginfo-1.20.0-150600.23.3.1
  • unbound-python-debuginfo-1.20.0-150600.23.3.1

References:

• https://www.suse.com/security/cve/CVE-2022-30698.html
• https://www.suse.com/security/cve/CVE-2022-30699.html
• https://www.suse.com/security/cve/CVE-2022-3204.html
• https://www.suse.com/security/cve/CVE-2023-50387.html
• https://www.suse.com/security/cve/CVE-2023-50868.html
• https://bugzilla.suse.com/show_bug.cgi?id=1202031
• https://bugzilla.suse.com/show_bug.cgi?id=1202033
• https://bugzilla.suse.com/show_bug.cgi?id=1203643
• https://bugzilla.suse.com/show_bug.cgi?id=1219823
• https://bugzilla.suse.com/show_bug.cgi?id=1219826
• https://jira.suse.com/browse/PED-8333